Closure for retorts.



PATENTBD APR. 16, 19o?.

M. LGAMPBELL. oLosuRB PoR RBToRTs.

APPLIUATION FILED AUG. 3j, i905.

I WUNESSES.- [NVE/W01?.

ATToIeAfEI/S` tort.

MALCOLM JQ CAMPBELL, or SUMEALL, MISSISSIPPI.

CLOSURE FOR RETORTS- Specification of Letters Patent.

Eatented. April 16, 1907.

Application filed August 3,1905. Serial No. 272,573.

T0 all whom t may concern,.-

Be it known that I, MALCOLM J. CAMPBELL, a citizen of the United States, residing at Sumrall, in the county of Lamar and State of Mississippi, have invented new and useful Closures for Retorts, of which the following is a specification.

This invention relates to turpentine-reports, and more particularly to closures there- The object of the invention is to provide a simple and thoroughly efficient form of -closure which is effective in sealing the retort and by means of which discharging of the contents of the retort may be readily and rapidly effected.

Vith the above and other obj ects in`vieW the invention consists of certain novel features of construction and combinations of parts which will be hereinafter more fully described, and pointed out in the claim.

In the accompanying drawings is shown the preferred form of the invention.

In said drawings, Figure 1 is a side elevation of a portion of a retort embodying iinprovements constituting the present invention. Fig. 2 is an enlarged section therethrough, and Fig. 3 is an end elevation.

Referring to the figures by characters of reference, 1 is a retort constructed, preferably, of heavy boiler-iron and supported in an inclined position upon a base 2, which 'may be of the usual or any preferred construction. A steam-pipe 3 extends into the retort and has a portion which extends longitudinally of said retort and provided with apertures 4, from which the steam is adapted to escape. A blow-off pipe 5 also extends from the retort and a vapor-outlet pipe 6 will also be suitably disposed upon the re- The parts set forth in the foregoing description do not embody any features of the present invention, but merely illustrate one form of retort with which the invention may be used.

The lower end ofthe retort 1 is closed by a discharging-door 7, which is provided with a peripheral flange 8, adapted to engage an annulus 9, secured to the interior of the retort adjacent its lower end in order to form a steam-tight juncture, this being effected by means of a locking-bar 10, one end of which carries a yoke 11, pivotally combined with ears 12, extending from one side of the retort by a bolt 13. The other end of the bar 10 is bifurcated to receive a bolt 14, which is hingedto a plate 15, bolted or otherwise secured to the shell 1, said bolt having combined with it a nut 16, carrying a crank 17 by which it can be turned. The bar is connected with the central portion of the door 7 by a bolt 18, which serves to secure in position a spacing-blocklQ, which operates as a fulcrum against which the bar will bear and will cause the door to tightly impinge against the annulus when the crank-nut 16 is seated.

'charged'to the ground.

The preferred form of the invention has been set forth in the foregoing description but I do not limit myself hereto, as I am aware that modifications may be made therein without departing from the spirit or sacrificing the advantages thereof, and I therefore reserve the right to make such changes as fairly fall within the scope of the claim.

Having thus. described the invention, what is claimed is- The combination with a retort; of an annulus secured on the interior of one end thereof, a door of substantially the same diameter as the internal diameter of the retort, ears upon the retort, a locking-bar having a curved forked end overlapping the end of the retort and pivoted to the ears, a spacing-block upon the center of the door and immovably connecting the door and bar, a bolt pivoted to the retort and detachably seated in one end of the bar, and means upon the bolt for drawing the bar toward the retort to clamp the door evenly upon the annulus to seal the retort.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

MALCOLM J. CAMPBELL. Witnesses:

J. A. MCGILL, J. W. SrLANKs.

IOO 

